Intebnal-combustion engine



J. SHAW.

INTERNAL CONIBUSTION ENGINE. APPLICATION FILED APIIJ. I9I7.

1,314,907, Patented Sept. 2, 1919.

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JAMES SHAW, 0F CHICAGO, ILLINoIs, AssIGNon To II. s. Moron. co., or CHICAeo,

- ILLINOIS.

f/ l INTERNAL-COMBUSTICN ENGINE.

Specification of Letters Patent. y

Patented sept. 2, 1919.

Application-mea Abra 7, 1917. seran No. 160,351.

This invention relates to internal combusy products, all as wil hereinafter more fully appear.

In the accompanying drawings Figure 1, is a transverse sectlonal elevation of one of the engine cylinders and its' associated arts.

Fig. 2, 1s an enlargedtransverse section of the upper end of an engine cylinder `and its valve housing Vand valves. 4

Fig. 3, is a detail longitudinal section of the same on line :1f-w Fig. 2.

Similar reference numerals 4parts in the several views.v

`Referring to the drawing, 1 designates an engine cylinder provided with the usual indicate Eke piston 2 operatively" connected to the engine l shaft 3, by a 'pitman 4, as usual.

5 designates the rotary operating shaft of the lengine valves, disposed above the series of engine cylinder l in a suitable inclosing housing 6, arranged above vsaid cylinders.

.Said operating shaft 5 is operatively concontrolling valves as follows flanges on the parts as shown. In the present structure the outer wall of the shell or casmg 1s of a semi-circular shape in crosssection, closed at one end and open at the outer end to provide a'n outlet from the space inclosed -withn said outer wall. Within said outer wall is arranged a tubular quarter-bend 'neck forming the fuel inlet passage 11 to the cylinder 1 and having a horizontally arranged portion integrally connected with an end wall or closure of the,

aforesaid shell or casing 10, and a vertically depending un-connected portion, the lower annular end of which is formed as a seat for the fuel inlet valve of the engine.

IWith the above described `arrangement the tubular quarter-bend fuel inlet neck lies wholly within the space or chamber inclosed by the outer wall aforesaid, and with said space or chamber in its approximately annular form constituting a part ofthe exhaust or outlet passage from the engine cylinder 1. The structure while providing a maximum degree of heat transference from the hot exhaust gases to the incoming cold charge of gaseous fuel, at the same time affords a free outlet for the exhaust gases and a like. free inlet for the gaseous fuel with a minimum degree of impedance'. At their inner and lower ends the chambers 11, 12 have communication with the single inlet-outlet opening of an engine cylinder, now to be described.

13 designates the single inlet-outlet o ening or passage of an engine cylinder a ove referred to, and which is preferably arranged at the upper end of the combustion chamber of said cylinder, and having a diameter suliicient to embrace the circular Inner and lower opening of the inlet chamber 11 and thev annular lower and inner opening of the exhaust chamber 12. And the said inlet-outlet opening 13 will have 14 designates a main upwardly1 closing valve associated with the lower end of the lopening 13 and controlling in common the j of a valve steml aforesaid, while each cam j ltion o'f the engine in which the gaseous fuel supply is drawn into the combustion cham- 17 designates an upwardly closingv valve arranged above the main Valve 14 ;aforethe combustion chamber' of said, and individual tothe inner and lower .endl of the inletchamloer 11 aforesaid,'and

controlling the supply of gaseous fuel to an engine cylin- 'Having thus fully 'described lmy sai-l 1in'.

vention, what I'claim as new and desireto ing and, comprising an. outer yinclosing wall 'and an inner quarter-bend neck arranged wholly within .said inclosing wall-and having `aA horizontal' portion attached 'to said.

4wall anda Vertical portionwholly disconnected froml said wall -and' formed vwith a valve seat at its lower end, a main valve head der 1 andl to such end the tuloular stem 18\.\c'ontrolling the inlet-outlet opening of the of said valve 17 is extendedl upwardly for operative engagement with the cam 9 of the operating shaft aforesaid. Each of the cams 8 of the operating shaft 5 aforesaid, is individual to and adaptedfor operative engagement with the upper end 9, preferably comprises .counterpart formation at the side of an aforesaid 'cam- 8, and l individual to and adapted for operative en-A gagement with the forked upper end of the 4tubular Valve stern 18 aforesaid'.

' 19 .desi gnates aV hollow stern or standard,.- extending upwardly Vfrom avalve casing 10 andadapted to afford a supportV for the housing 6 of thel valve operating shaft 5 aforesaidg'a support for the hereinafter described abutment collar of the lifting spring of the fuel inlet valve 1.7, and .a guiding means for the tubular stem18 of said valve.

vsaidv 20 designates an abutment collar iXed on the stem or standard19 aforesaid, to provide a sup-port for asprin'g 21, adapted to exert a yielding upward stressl on the'tubularstem 18 and hold the fuel finlet valve17, inits closed condition.

:22l designates a companion spring resting upon the bottom web of the housing 6 aforesaid, and exerting a yielding upward stress on the stem 15of themaih valve 14, through a cross pin 23 and elongated slot formation.

of the arts, and adapted to yieldingly hold qvc 14 in a closed condition.

cylinder, a 'valve head associated with the 5()` 1. In combination, an engme'cylinder havvalve seat of 'theinnerf neck aforesaid, 'l

andan inner quarter-bend neck arranged Whollywithin said `inclosing wall and havf' ing a horizontal portion attached`itosa'1dl wall and avertical portioniwholly disconnected yfrom said wall and formed'with .a

means for operating saidvalve heads,- and i ing associatedwith" said cylinder and openfing and comprising a-n outer inclosing wall.

valve .seat at -its lowerl end, a :main valve head controlling theinlet-outlet opening of the cylinder, avalv'e head associ-ated with` the valve seatof the inner .neck aforesaid,l means for operating said valve heads they same comprising associated valve stems,`

springs formoving said valve heads infone direction andan operating-shaft provided with cams for movingzsaid valves in the opposite direction, and fa check valvecontro'lling' communication between the inlet-outlet opening and the exhaust outlet of the.'

cylinder, substantially as .set forth.

.signed at -ohicagaininois this tthfday' 0f April 1917.

JAMES SHAW.- 

